Potentiometers, Variable Resistors

Potentiometers, Variable Resistors

Devices that control the current that flows through a circuit.

Trimmer Potentiometers
A variable device that opposes the flow of current. The resistance of these devices is changed using a rotary portion of the device (usually needing a separate tool) that is attached to the center axis of the component.

Value Display Potentiometers
A variable device that opposes the flow of current. The resistance of these devices is changed by pushing a button or rotating a wheel. The values that the device is being changed to is displayed on the front of the unit.